mindformers.models.LlamaConfig

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class mindformers.models.LlamaConfig(batch_size: int = 1, seq_length: int = 2048, hidden_size: int = 4096, num_layers: int = 32, num_heads: int = 32, n_kv_heads: Optional[int] = None, max_position_embedding: Optional[int] = None, intermediate_size: Optional[int] = None, vocab_size: int = 32000, multiple_of: int = 256, ffn_dim_multiplier: Optional[int] = None, rms_norm_eps: float = 1e-5, bos_token_id: int = 1, eos_token_id: int = 2, pad_token_id: int = 0, ignore_token_id: int = - 100, theta: float = 10000.0, compute_dtype: str = 'float16', layernorm_compute_type: str = 'float32', softmax_compute_type: str = 'float32', rotary_dtype: str = 'float32', param_init_type: str = 'float16', embedding_init_type=None, qkv_has_bias: bool = False, qkv_concat: bool = False, parallel_config: Union[dict, TransformerOpParallelConfig] = default_transformer_config, moe_config: Union[dict, MoEConfig] = default_moe_config, use_past: bool = False, extend_method: str = 'None', scaling_factor: float = 1.0, is_dynamic: bool = False, use_rope_slice: bool = False, use_flash_attention: bool = False, use_ring_attention: bool = False, use_attn_mask_compression: bool = False, parallel_optimizer: bool = False, fine_grain_interleave: int = 1, pp_interleave_num: int = 1, offset: int = 0, checkpoint_name_or_path: str = '', repetition_penalty: float = 1.0, max_decode_length: int = 1024, block_size: int = 16, num_blocks: int = 512, top_k: int = 5, top_p: float = 1.0, do_sample: bool = True, quant_config: dict = None, tie_word_embeddings: bool = False, llm_backend: str = '', fused_rms_norm: bool = True, **kwargs)[源代码]

Llama 配置类,定义了模型大小。

参数:
  • batch_size (int, 可选) - 输入数据的批量大小,用于预测。默认值: 1

  • seq_length (int, 可选) - 输入 ids 的序列长度,默认值: 2048

  • vocab_size (int, 可选) - 模型的词汇表大小。默认值: 32000

  • hidden_size (int, 可选) - 编码器层和池化层的维度。默认值: 4096

  • num_layers (int, 可选) - Transformer 编码器中隐藏层的数量。默认值: 32

  • num_heads (int, 可选) - Transformer 编码器中每个注意力层的注意力头数。默认值: 32

  • multiple_of (int, 可选) - SwiGLU 隐藏层大小的倍数,默认值: 256

  • n_kv_heads (int, 可选) - 多组头注意力头数,默认值: None

  • ffn_dim_multiplier (int, 可选) - ffn 层维度的倍数,默认值: None

  • rms_norm_eps (float, 可选) - rms_norm的epsilon 值。默认值: 1e-5

  • bos_token_id (int, 可选) - 序列开始 词元的 id。默认值: 1

  • eos_token_id (int, 可选) - 序列结束 词元的 id。默认值: 2

  • pad_token_id (int, 可选) - 填充 词元的 id。默认值: 0

  • ignore_token_id (int, 可选) - 忽略 词元的 id。默认值: -100

  • compute_dtype (str, 可选) - 线性层计算数据类型,默认值: float16

  • layernorm_compute_type (str, 可选) - layernorm 计算数据类型,默认值: float32

  • softmax_compute_type (str, 可选) - softmax 计算数据类型,默认值: float32

  • rotary_dtype (str, 可选) - rope 计算数据类型,默认值: float32

  • param_init_type (str, 可选) - 参数初始化数据类型,默认值: float16

  • qkv_has_bias (bool, 可选) - 查询、键和值的投影是否有偏置。默认值: False

  • use_past (bool, 可选) - 模型是否应使用过去的键/值注意力(如果适用于模型)来加速解码。默认值: False

  • parallel_config (TransformerOpParallelConfig) - 并行配置。默认值: default_transformer_config ,一个带有默认参数的 TransformerOpParallelConfig 实例。

  • extend_method (str, 可选) - 序列长度推理时的扩展方法。默认值: None

  • use_flash_attention (bool, 可选) - 是否启用闪存注意力操作。默认值: False

  • use_ring_attention (bool, 可选) - 是否启用环形注意力操作。默认值: False

  • offset (int, 可选) - 设置流水线阶段编号时的 Transformer 层偏移量。默认值: 0

  • checkpoint_name_or_path (str, 可选) - 用于加载到网络中的检查点路径或名称。默认值: None

  • repetition_penalty (float, 可选) - 重复惩罚参数,1.0 表示没有惩罚。详细信息请参阅 这篇论文 。默认值: 1.0

  • max_decode_length (int, 可选) - 生成的词元的最大长度,对应输入提示的长度加上 max_new_tokens 。如果同时设置了 max_new_tokens ,则它的效果将被覆盖。默认值: 1024

  • top_k (int, 可选) - 用于 top-k 筛选的最高概率词汇表词元数量。默认值:5

  • top_p (float, 可选) - 如果设置为小于 1 的浮点数,则仅保留概率和达到 top_p 或更高值的最小词元集合,用于生成。默认值: 1.0

  • do_sample (bool, 可选) - 是否使用采样;否则使用贪婪解码。默认值: True

  • block_size (int, 可选) - 使用分页注意力时,一个块中可以包含的最大词元数。默认值: 16

  • num_blocks (int, 可选) - 使用分页注意力时的最大块数。默认值: 512

  • tie_word_embeddings (bool, 可选) - 是否将输入和输出嵌入层进行共享。默认值: False

  • llm_backend (str, 可选) - LLM 加速后端。默认值: None

  • fused_rms_norm (bool, 可选) - 是否使用融合算子的RMS_NORM。默认值: True

返回:

LlamaConfig 类实例。

样例:

>>> from mindformers.models import LlamaConfig
>>> config = LlamaConfig(num_layers=2, seq_length=1024)
>>> print(config)
LlamaConfig {
"batch_size": 1,
"block_size": 16,
"bos_token_id": 1,
"checkpoint_name_or_path": "",
"compute_dtype": "float16",
"do_sample": true,
"embedding_init_type": "float16",
"eos_token_id": 2,
"extend_method": "None",
"ffn_dim_multiplier": null,
"fine_grain_interleave": 1,
"hidden_size": 4096,
"ignore_token_id": -100,
"intermediate_size": null,
"is_dynamic": false,
"layernorm_compute_type": "float32",
"llm_backend": "",
"max_decode_length": 1024,
"max_position_embedding": 1024,
"mindformers_version": "dev",
"model_type": "llama",
"multiple_of": 256,
"n_kv_heads": null,
"num_blocks": 512,
"num_heads": 32,
"num_layers": 2,
"offset": 0,
"pad_token_id": 0,
"parallel_decoding_params": null,
"parallel_optimizer": false,
"param_init_type": "float16",
"pp_interleave_num": 1,
"qkv_concat": false,
"qkv_has_bias": false,
"quant_config": null,
"repetition_penalty": 1.0,
"rms_norm_eps": 1e-05,
"rotary_dtype": "float32",
"scaling_factor": 1.0,
"seq_length": 1024,
"softmax_compute_type": "float32",
"theta": 10000.0,
"tie_word_embeddings": false,
"top_k": 5,
"top_p": 1.0,
"use_attn_mask_compression": false,
"use_flash_attention": false,
"use_past": false,
"use_ring_attention": false,
"use_rope_slice": false,
"vocab_size": 32000
}